Finding the Fourth Proportional to 509,237.11, 702,759.02 and 279,808.75
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Solution
The fourth proportional to 509,237.11, 702,759.02 and 279,808.75 is: 386,142.56
Step by Step Solution
- Step 1: Write the proportion equation
509,237.11 : 702,759.02 = 279,808.75 : x - Step 2: Convert to fraction form
509,237.11/702,759.02 = 279,808.75/x - Step 3: Cross multiply
509,237.11x = 702,759.02 × 279,808.75 - Step 4: Simplify right side
509,237.11x = 196,638,122,937.43 - Step 5: Solve for x
x = 196,638,122,937.43/509,237.11 - Step 6: Final answer
x = 386,142.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.